Transmission insulator



NOV. 8, w s E TRANSMISSION INSULATOR Filed June 25. "1927 -|NVENTOR VV/LLl/VM J Jaws.

I6. ATTORNEYS.

" UNETED STAT WILLIAM s. CONE, or oiximseimtem TRANSMISSIO liiilI -FQTQF.

Application filed June 25,

My invention relates to improvements in insulators, and it consists in the combinations, constructions and arrangements hereinafter described and claimed.

An obj eot of my invention is to provide an insulator which is composed of a number of spaced apart plates that are positioned between the supporting members and a wire, these plates acting as condensers for materially increasing the Voltage of the current which may be carried by the wire without a likelihood of causing a breakdown.

A further object of my invention is to provide a device of the type described which acts as a lightning arrester, and has means for causing current to pass through the metal parts or" the device and away from the insulating portions in case the wire is struck by lightning.

Other objects and advantages will appear in the following specification, and the novel features of my invention will be particularly pointed out in the appended claims.

My invention is illustrated in the accompanying drawing forming a part of this application, in which Figure 1 is a vertical section through the device; and

Figure 2 is a section along the line 2-2 of Figure 1.

In carrying out my invention I provide a number of rings 1, which are preferably made of metal and which vary in size accord-' ing to the requirements of carrying wires, which in turn carry a current of high voltage. The rings are spaced from each other by insulating members 2. In the present instance I have shown four of these members 2 disposed in each ring and have shown the members as being cemented at 3 to the rings by any cementitious material. It is obvious that more or less members may be .disposed between each ring and that the members may be secured to rings by other means than that shown, without departing from the spirit and scope of my invention.

The lowermost ring 1 is mounted upon a supporting arm 4 of a tower, not shown, and 50 is secured to the arm by bolts 5 and is spaced ..h;.'..;fss ty sleeves; a. as a. a-

turnsnpportthewire 8.-

SulatorsearrieS supporting arms 7, :which in In order. to prevent-theicu'rrent from ilowing over: the insulating members 2 when r the v device is struck by lightning, I provide raised portions 9 in the; rings 11-, these po'rtions bein g; aligned one' above another so' that' there .Wl1fl b'8':,a shorter ,gai'r gap between these por- YtionSathan -there is between ringsat'tliepoints where the insulators 2 are mounted; .From thei-foregd' description of the various parts of the device, the operation thereof may readily be understood.

As many rings 1 as desired may be mounted upon each other for spacing the wire 8 the desired distance from the arm 4. I have found that the rings when mounted one above the other, as shown, will have a condenser efi'ect which will permit the insulator to carry wires carrying extremely high voltage without the tendency of the insulator to break down, and permit the current to leak from the wire to the arm 4.

In addition to this I have provided a short path consisting of the aligned projections 9,

through which the current will travel in case the device is struck by lightning. In this way the device acts as a lightning arrester in addition to the fact that it acts as an insulator.

The rings 1 are made narrower in width at i 10, see Figure 2, between adjacent insulating members 2, so that the rings will not carry such a large quantity of snow or rain when the device is exposed to these elements.

Although I have shown and described only '7 one embodiment of my invention, it should be understood that various changes or modifications may be made within the scope of the appended claims without departing from the spirit of the invention.

I claim:

1. upstanding insulator comprising a plurality of conductor rings arranged one above the other and providing an opened vertical passageway through the insulator, insulating members spaced from each other and spacing each ring from adjacent rings, and a wire carrying member supported by the top conducting member.

2. An upstanding insulator comprising a plurality of conductor rings arranged one above the other and providing an opened vertical passageway through the insulator, insulating members spaced from each other and spacing each ring from adjacent rings, a wire carrying member supported by the top conducting member, and integral conducting means carried by said rings or providing a shorter electrical path between the means than through the insulating-members.

3. An insulator comprising a plurality of conductor rings arranged in spaced relation, each ring having recessed portions 1n the opposite faces thereof, insulating members spaced from each other and having their nds disposed in the recessed portions of the confronting faces of adjacent rings, and means for securing the insulators to the rings.

4., An insulator comprising a plurality of relatively narrowconductor rings arranged in spacedv relation and fashioned with a plurality'of portions of increased width, and insulating members spacing the rings apart and attached to the rings at the increased portions of the latter.

' WILLIAM S. CONE. 

